Sanding device



F. W. KALLM AND P. S. T'OENNESEN.

sANmNG DEVICE.

` I APPLICATION FILED FEB. 3, '9l9. y 1,35 1,760, PatentedSept. 7, 1920.

. 2 SHEETS-SHEET l.

F. W'. KALLOM AND P. S. TOENNESEN.

SANDING DEVICE.

APPLICATION FILED FEB. a. 1919.

UNITED STATE aTaT Trier..

FRANK W. KALLOM, 0F IINTVAIILDIEIN,v AND PETER S. TOENNESEN, OF VERETT, MASSA- CI-IUSETTS.

SANDING DEVICE.

of sanding device disclosed in our prior Patent No. 1,168,898, granted January 18, 1916.

This type of sanding device has proved very successful land the present inventionl is directed to the perfection and. improvement'of sanding devices of this character with a view particularly to reducing-the vcost of manufacture and installation of such devices, facilitating repair, improving their reliability and ease of operation, vand generally. improving this type of sanding device. n

The manner in which it is proposed to accomplish these objects will be readily understood from the following ldescription and the novel features of the invention will be particularly pointed lout in, the appended claims. l, l

Referring now tothe accompanying drawings, Figure 1 is a vertical cross-sectional View illustrating a sanding device embodying the Y present invention; A

Fig. 2 isa vertical,cross-sectional,view showing, on a larger scale, certain ofthe details of construction of' the structure 4shown in Fig. l;

Fig. 3 is a horizontal;cross-sectional viewV taken substantially on the line 3&3, Fig. 1'; Fig. l is a verticalforces-sectionalvview through the clamp shown in Fig. 2; O

Fig. 5 shows, partly in cross-section and partly in side elevation, the construction by which the cable is secu-red to the operating handle;

Fig. 6 is a cross-sectional` view showing certain of the guiding devices `for the-cable ;v

Fig. 7 is aside elevation,showingV additional parts of theoperating mechanism for the sanding device; Fig. 8 is a cross-sectional view showing another operating means that may be emploved;

Fig... 9 is across-sectional view through Specification of Letters Patent. Pajgnted Sept, '7, 1920, Application led February 3, 1919. Serial No. 274,604.

one1 of the pulley housings shown inFig. 7 anc l y F v10 is a rear elevation of the housing for the pulley shown in Fig. 1.

The construction shown comprises a base 2 constructedv to be secured to a suitable support and shaped to receive the lower end of ahopper 8 in which the sand is placed. A

Y discharge tube 4, open at both ends, projects tion inthe base, the collar itself being held under two ears 8 and 9 that are formed on the base. .This collar, also is provided with .notches 10 which register with the'ears 8 and 9 whenV the vcollar isturned into a1 suitable position, thus permitting the Vwithdrawal of the collar from the base and permitting also the subsequent removal of the scraper; In

order to facilitate this operation the collar is provided with two ears.'orproj'ectionsl 12 at substantially diagrammatically opposite" points and each ear-has a hole formed therethrough so that a U-sha'pe'd'wire having Yitsv ends turned, outwardlyv away from 'each other may be inserted in the Aears 12 and the collar-thus lifted. out of the base.

The discharge tube .4f vis normally held in vitsraised position by acoiledsprin'gl/t andv it may be lowered in opposition to the action of this spring yby pulling on aiiiexible cable, l or the like, 15, both theparts 14 and 15 being secured to thev Vlower `vend. ofthe tube 4 by'a clamp 16. vThe construction of' this clampis best illustrated in Figs. 2.anid 6. In the conl struction shown in Fig. 2 the upper end of the clamp 16 is drilled to receive the lower end of the spring ylLfAn eye is formed in this. spring Vand a. Cotter pin extending through this eye and through the upper end of the clamp securesthe spring to the clamp.

in it to receive the upper end of the cable 15. A. boltl9 'extends through the walls of the tube 4, and a' nut 20threaded on this se..

. 195 The'lowerportion. of theqclamp is split longitudinally and a curved groove 18 is formed cures the clamp in place and also binds the two parts of the clamp on the upper end of the cable. The fact that the cable is lrinked in the clamp, due to this'grooved construction, makes this a very secure means for an choring` the cable to the tube.

Fig. V4 shows the construction illustratedy in Fig. 2 with a slightly different arrangement for connecting the spiral spring to the clamp. ln this construction Vthe, clamp is provided with a reduced upper end that Ais threaded and the lower. end oi" the spiral spring 14. is threaded `on to this reduced portion. Y

A'pulley 21 is mounted in the hopper at a point adjacent to the upper limit of the range of movement ot' the upper end ofthe tube 4 and is supported in a housing 22 Vwhich terminates at its lower endina hood 23 to receive the upper end of the tube 4.

, The spiral spring 4 runs over this pulley 21 and through a tube or pipe 24, one end of which is secured in a nipple formed in the housing 22, while its other'y end is secured either in the wall ot the hopper or in a stationary support 25.1501 the hopper.. In the construction shownv the outer end ofthe tube 24 has a cap 26 threaded thereonand astem 27 projects loosely through this cap and is threaded into the turns of the spring 14. A

:nut 28 also is threaded on the stem 27. This constructionl not only securely anchors the upper end of the spring 14 but it provides a very simple and convenient f rm oil adjustment for varying the tension ot this spring,

it being merely necessary to turn the nut 2S iny one direction or the other, as required, to

move the Ystem 27. in or out andtlius decrease or increase the tension of the spring.

the housing thus being braced in three direc- 1 tions against movement.

It will now be understood that when the hopper 3 is filled with sand a pull on the 1. cable l5 will lower the discharge tube 4 thus i allowing the loose dry upper `layers of sand inthe hopper to flow down' through the tube ,14. As soon as thefcable 15 is released the spring 14 will immediately raise the tube 4 to its upper position again, the upper end of the tube entering thehood 23 which prevents the liow of sand into the tube, even if the hopper isiilled to a point above the level of the hood..` This vhood also prevents sand or stones from falling into the tube 4 when the hopper is being filled. Any tendency of the sand to wedge in betweenthe Vouter surface of the tube 4 and the base 2 is prevented- Y itting '35i by the scraper 5 which also prevents sand from working down alongr the tube and through the bottom of the hopper. The manner in which the hopper is mounted obviously will depend largely upon the design of thecar in which it is to be used. If desired a screen 32'may be placed loosely on the top of Ythe, hopper so that the sand may beV poured through this screen in filling the hopper and the screen thus will prevent the passage into the hopper of stones or other pieces of foreign material too large to flow freely through the tube 4.l A metal rim supports the screen 32 andV rests on the upper edge of the hopper.

When the tube 4 is lowered it slides down within a pipe 34, the upper end ot which fits into the bottom ot' the base 2 and the lower end` of which is supported in a bracket or rThis bracket is provided with ears to which braces 36 are bolted that serve to steady tl'iebraclet against lateral move-` ment and alsovto support the bracket in the desired vertical position. A flexible discharge spout 37 isrthreaded on tothe lower end of the bracket 36 and conducts the sand to a point under the car wheel. .v

This bracket 35 also forms a part of a housing fora pulley 38 over which the cable 15 is guided. As clearly shown in Fig. 6,

y .this housingconsists of a partition 3.9 shaped to partially surround the pulley and lhaving an opening r40 through which the cable 15 passes, thewall of this partition immediately surrounding the opening being tapered, as

Vshown at Fig. 6, to-direct'vthe sand away from the cable and thus preventv any substantial amount of sand from passing Athrough the opening.v Anotherr housing member 41., mounted for YadjustmentV about fthe pivot stud 42 on vwhich the pulley38 revolves,.is provided with a nipple toreceive one end of a pipe 43 through which the cable 15 travels toward vthe front of the car into; position to bevoperate'd by the inotorman.`

vslip joint is provided between the pipek 43 and the nipple 41`and the nipple is drilled, as indicated at 44to receive a cotter pin. Consequently, when the two parts-41 and have-been assembled, as shownrin Fig. 6,' a drill is run through lthe hole 44- to Jformav groove. i-n vone side ofthe pipe 43 and the cotter pin is` then forced throughfthis hole and its ends spread apart so that, it secures the pipe against withdrawal. l Y f ,The connections between the sand box and thehandle or treadle used to operate the sanding device valso will vary with different designs of cars, and the present invention` provides connections which facilitate the installation, of thev apparatus inV different types ofV cars. Usually it is preferable to inclose'thecable 15 in pipes or tubing and to run thecable vover pulleys wherever itl turns acorner." "A very convenient form of I h receive a pipe A4'?, th'elconnectionv between ythe parts 46 and 47 being like vthatbetween the parts 4l and 43 in Fig. 6. lThis housing also may be provided with-a yn`i],: ple5 1"to 'receive'a pipe 52 and flown e slip jointjconnectioii withthe pipe, and this housing member 50 is mounted on the pivot on which'the pulley that is Vprete'ctedby the housing rotates, so that the part: 5() is tree assume y any angle thatmay be necessary.v

The vpipei48, Fig. 7, usually is located'beneath the Afloor on whichk the inotorman stands. Thev pipe 52 inc loses vtlie'fcable 15 where it is led through the iloor and up to a handle 54 located within convenient 'reach of the motornian, so that it is merely neces- 'y I 4 I a y Y ma discharge tubev extending through the bot toni of said hopper and arranged to be sary for him to grasp thehandle and pull it toward him iii orderlto'low'er the delivery tube 4 and discharge sand. adjacent to the handle is led over a pulley 55 inclosed in housing members 56 and 5T like those illustrated at 45 and 50, respectively, in Fig. 7. Y

ln order to secure the cable 15 in the handle 54 it may be brought through a hole drilled in a washer 58, Fig. 5, and passed downwardly through another hole in said washer thus forming a loop, the extreme end ot' the cable being'lashed to another part of the cable lying within a nipple 59 that is formed on the handle. Preferably the cable at this point is inclosedV in a flexible armor 60 which serves to protect it. The washer 58 is located lin a seat formed for it in the body oit the handleso that the strainv on the cable, when the handle is pulled,

tends to force this washer more firmly into.

the tube 4 is at the upper limit of its ranger of movement. The cable can then besecured in the handle as shown Vin Fig. 5 and the apparatus willbe ready to operate.,

lf a treadle construction is desired instead or a hand operated arrangement, the apparatus shown in Fig. 8 may be used. is, the cable 15 can be led into a fitting 60, secured below the floor, and run over a pulley 6l supported in this fitting and under a pulley 62 mounted on the lower endo a root-operated plunger 63 that projects upwardly through the floor. The end of the cable is fastened at 64. Consequently when the plunger is depressed the cable 15 will be pulled over the pulley 6l and the tube 4.

` "il: A sian-ding device, compri acdischarge tube extending through the bot- "tomv oi-said"`liopper and arranged tobe The cable 15 Thatv will' be depressed byga distance equalto twice the length of the downward movement of thevplunger 63. `When the plunger is revleasedvthe spring 14 will return'it-to its iaisedposition'atthe same time that it returns `thebdisehange tube 4` to vits upper position..

What is claimedas'new, is

sing a hopper,

raised or lowered relatively to the hopper, means tor normally holding said tube in a raised position with the Aupper fend thereof v"above the level or the sand in the hopper,

lmeans for lowering said tube, and a hood 'within which the upper'end of thetuber rests whenin its elevated position. f

; 2.4i sanding device, comprising'a hopper,

raised or lowered relatively to the hopper,

cated adjacent to the upper limit of movement ot the upper -end of said tube, means for lowering said tube, and means for nornially holding said vtube in its raised position comprising a flexible member running over said pulley. V

3. A sanding device, comprising a hopper, a discharge tube extending through the bottom or said hopper and arranged to be raisedor lowered relatively to the hopper, a pulley mounted on a stationary axisadjacent to the upper limit ofmovement of the upper `end or said tube, a spiral spring running over saidpulley and having oneend secured to said tube whereby it is operative to hold the tube normally in a raisedposi- 4. 'A sanding device, comprising a hopper,

fa pulleyv mounted on Va stationary axis'adja-` centto theupper limitofmovement or the upper end of said tube, a. housing fork said a discharge tube extending through the .bot-- pulley, means for securing said housing in a stationary position, a spiral spring running over said pulley aiidrhavin'g one end secured to said tube whereby it is operativev Vto hold the tube normally in raised position,

and means for lowering the tube against the action of said spring, and a horizontaltube connected with said housing.

5. A sanding deviee, comprising a hopper, a discharge tube extending through the bottom of. said hopper and arranged to-be raised o r lowered relatively to the hopper,a pulley mounted on a stationary axis adjacent to the upper limit of movement of the f upper end of said tube, a spiral spring extending over said pulley and downwardly within said tube from the upper end thereof,

raised or lowered relatively to thefhopper, a

clamp mounted within said tube, av cable having one end secured 1n said claimp and a spiral spring extending downwardly into the tube Vfrom the' upper end thereof and 1 havin its lower end secured to said cla-mp.

f 7. sanding device, comprising a hopper, a discharge tube extending through the bottom; of said hopper and arranged to be raised or lowered relatively tothe hopper, a

' sheet metal scraper through which said tube slides comprising an outer flange and a cen- .tral upwardly tapered portion closely surf yrounding said tube, a ,basev in whichsaid scraper is mountedand a collar removably secured in said base and holding said scraper in its operative position.

8. A sanding device, comprising a hopper,

la discharge tube extending through the bottom of said hopper and arranged tobek raised or lowered relatively to the hopper, means for normally holding said tuberin its elevated position, and means for lowering said tube comprising a cable securedv to the tube, aguide through which the cableruns,

a pulley over which the cable is guided and i to lwhich said guide is secured, and a twopart housing for said pulley, said parts of said housing being angularly adjustable with reference to each other about the axis of rotation of the pulley.

y In testimony whereof we have signed our names to thisspecilication.

FRANK W. VKALLOM.

PETER s. roENNEsEN.' 

